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Illustrate the main difference between Gouraud shading with Phong shading techniques?
Describe the concept of region codes (or outcodes) in the Cohen-Sutherland line clipping algorithm. Use the algorithm to clip the line AD illustrated below.
Write down the open GL code which defines a two-dimensional straight line segment having co-ordinates (180, 15) and (10, 145).
What do you mean by B-spline curves? Illustrate any two properties of the B-spline curves.
Describe the Back-Face detection technique for locating the back faces of a polyhedron. Describe with the help of appropriate diagrams.
Specify the main differences between the Bezier curve, B-spline curves and B-spline curve-NURBS.
Describe the Constructive Solid Geometry (or CSG) method for solid modeling. In brief describe how ray-casting techniques are used to implement the CSG operations.
In brief explain the Cohen-Sutherland line clipping algorithm.
Describe the Depth sorting method for the hidden surface elimination. Name the tests which are performed if there is depth overlap?
Write down openGL curve functions, line functions and the Geometric transformation functions; two from each category with their respective meaning.
Compare and contrast the Z- Buffer algorithm and Depth sort algorithm for back face culling.
Write down the Bresenhem’s circle drawing algorithm. Why co-ordinates of just one eighth of the total pixels lying on the circumference of a circle are calculated?
Provide four illustrations each for Input and output devices which are used in the Computer Graphics.
Write down the difference between Raster and Vector Graphics Method. When do we prefer what?
Describe the following forms of parametric curves-Hermite, Bezier, Uniform B-spline, and Non uniform B-spline.
Write down and explain the midpoint circle drawing algorithm. Assume 10 cm as the radius and co-ordinate origin as the centre of the circle. Write detailed notes on RGB and HSV color models.
Describe the concept of Huffman coding with an appropriate example. As well describe how does it attain compression?
Write the equation for Walsh transform and list all the properties of Walsh transform.
What is the use of sharpening the image operation and analysis?
Describe the Cohen-Sutherland algorithm. This algorithm is proficient when outcode testing can be done economically.
Illustrate the term ray-tracing? What is it used for? In brief describe the basic ray-trace algorithm.
What do you mean by uniform periodic B-spline curves? Describe the periodic blending functions.
Illustrate out perceptions and stereotyping viewing. How can you generate surface with 3D Scanner in geometric modelling?
How to add text in the CorelDRAW? Illustrate out hyphenation on the CorelDRAW.
Illustrate out the term Developmental Test and Evaluation (DT&E). Illustrate out the term SE Process Model Objective.